Objective: To study the expression of △Np73, an isoform of the p53 homologue p73, in the different stages of human non-small-cell lung cancer (NSCLC) and the association of△Np73 expression with in patient survival. ...Objective: To study the expression of △Np73, an isoform of the p53 homologue p73, in the different stages of human non-small-cell lung cancer (NSCLC) and the association of△Np73 expression with in patient survival. Methods: Semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR) was used to study the expression of△Np73 mRNA in 51 resected NSCLC tissues. Its relation to clinicopathological factors and survival outcome were analyzed. Results: The positive rate and expression level of△Np73 mRNA in the cancer tissues were significantly higher than that in the matched non-cancer lung tissues. The incidence of positive expression of△Np73 was 50. 0% , 52. 6% , and 87. 5% in patients with stageⅠ,Ⅱ, andⅢ, respectively. Positive expression of△Np73 was associated with pathological TNM stage (P = 0. 046), while not with age, gender, histological type and differentiation status. Survival rate of patients with high△Np73 mRNA was significantly poorer than those with low△Np73 mRNA levels (P<0. 001). Multivariate analysis revealed that△Np73 mRNA levels were a significant prognostic factor, independent of the other conventional prognostic factors. Conclusion: NSCLC has over-expression of△Np73 mRNA, which is closely related to TNM stages and prognosis of patients with NSCLC. These results suggest that measurement of△Np73 mRNA levels in tumor tissues might be useful as a promising predictor for the prognosis of patients with NSCLC.展开更多
OBJECTIVE A system was established to evaluate the metastasis and prognosis of oral squamous cell carcinoma by analyzing the tumor differentiation, the TNM stage, the mode of invasion, and the expression of E-cadherin...OBJECTIVE A system was established to evaluate the metastasis and prognosis of oral squamous cell carcinoma by analyzing the tumor differentiation, the TNM stage, the mode of invasion, and the expression of E-cadherin and S100A4. METHODS Squamous cell carcinoma of the oral cavity of 86 cases was the focus of our study. In this system, the histopathological grade and the histochemical patterns were estimated on a 0-3 point scale, the total points graded from 0 to 13. RESULTS The incidence of metastasis and prognosis in the cases with total points more than 8 was significantly higher than that with total points less than 7 （P 〈 0.05,χ^2= 22.0658 and P 〈 0.05, χ^2= 10.7047）. The system had a significant higher specificity than that of ＇DIAGS index＇ system （Differentiation, Invasion mode, Adhesion molecules, Glycosaminoglycan, and the Sugar chain） in the evaluation of metastasis （P 〈 0.05, u = 2.2339）. Moreover, the specificity for evaluation of metastasis in the system was significantly higher than that of E-cadherin （P 〈 0.05, u = 2.4996） or S100A4 （P 〈 0.05, u = 2.4289） only. Furthermore the specificity for evaluation of unfavorable prognosis in the system was also significantly higher than that of E-cadherin （P 〈 0.05, u = 2.1313） or S100A4 only （P 〈 0.05, u = 2.0301）. CONCLUSION This is a valuable evaluation system with high specificity to predict metastatic potential and prognosis of oral squamous cell carcinoma.展开更多
文摘Objective: To study the expression of △Np73, an isoform of the p53 homologue p73, in the different stages of human non-small-cell lung cancer (NSCLC) and the association of△Np73 expression with in patient survival. Methods: Semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR) was used to study the expression of△Np73 mRNA in 51 resected NSCLC tissues. Its relation to clinicopathological factors and survival outcome were analyzed. Results: The positive rate and expression level of△Np73 mRNA in the cancer tissues were significantly higher than that in the matched non-cancer lung tissues. The incidence of positive expression of△Np73 was 50. 0% , 52. 6% , and 87. 5% in patients with stageⅠ,Ⅱ, andⅢ, respectively. Positive expression of△Np73 was associated with pathological TNM stage (P = 0. 046), while not with age, gender, histological type and differentiation status. Survival rate of patients with high△Np73 mRNA was significantly poorer than those with low△Np73 mRNA levels (P<0. 001). Multivariate analysis revealed that△Np73 mRNA levels were a significant prognostic factor, independent of the other conventional prognostic factors. Conclusion: NSCLC has over-expression of△Np73 mRNA, which is closely related to TNM stages and prognosis of patients with NSCLC. These results suggest that measurement of△Np73 mRNA levels in tumor tissues might be useful as a promising predictor for the prognosis of patients with NSCLC.
基金supported by a grant from the Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry,China(No.2005383).
文摘OBJECTIVE A system was established to evaluate the metastasis and prognosis of oral squamous cell carcinoma by analyzing the tumor differentiation, the TNM stage, the mode of invasion, and the expression of E-cadherin and S100A4. METHODS Squamous cell carcinoma of the oral cavity of 86 cases was the focus of our study. In this system, the histopathological grade and the histochemical patterns were estimated on a 0-3 point scale, the total points graded from 0 to 13. RESULTS The incidence of metastasis and prognosis in the cases with total points more than 8 was significantly higher than that with total points less than 7 （P 〈 0.05,χ^2= 22.0658 and P 〈 0.05, χ^2= 10.7047）. The system had a significant higher specificity than that of ＇DIAGS index＇ system （Differentiation, Invasion mode, Adhesion molecules, Glycosaminoglycan, and the Sugar chain） in the evaluation of metastasis （P 〈 0.05, u = 2.2339）. Moreover, the specificity for evaluation of metastasis in the system was significantly higher than that of E-cadherin （P 〈 0.05, u = 2.4996） or S100A4 （P 〈 0.05, u = 2.4289） only. Furthermore the specificity for evaluation of unfavorable prognosis in the system was also significantly higher than that of E-cadherin （P 〈 0.05, u = 2.1313） or S100A4 only （P 〈 0.05, u = 2.0301）. CONCLUSION This is a valuable evaluation system with high specificity to predict metastatic potential and prognosis of oral squamous cell carcinoma.
